Fluke 35040 - Manual (Page 63)

Troubleshooting and Service
Troubleshooting
4
4-5
Example: 299.9 to 300.0
Cause: Rounding error in measurement.
Action: None.
Explanation: The bias voltage is not actually changing. The control for the bias is in discrete steps.
The measurement is also in discrete steps. The control program may select a setting
that causes the measurement to be very near the transition between one measurement
step and the next.